Sergio Luis Cunha Email & Phone Number

Deployed Veraz Class4 SoftSwitch (ControlSwitch) and Media Gateways at Claro (Brazilian second largest carrier). Then continue working internally at Claro facilities supporting Veraz network as well as a consultant for their network working closely with Engineering and O&M creating call routing policies and performing traffic analysis. Responsible for the provisioning of routing policies and treatment failures in the TDM and IP networks (CAS-R2, SS7, ISDN, ISUP, M3UA, IUA, SIP, MGCP and H.248).… Show more Deployed Veraz Class4 SoftSwitch (ControlSwitch) and Media Gateways at Claro (Brazilian second largest carrier). Then continue working internally at Claro facilities supporting Veraz network as well as a consultant for their network working closely with Engineering and O&M creating call routing policies and performing traffic analysis. Responsible for the provisioning of routing policies and treatment failures in the TDM and IP networks (CAS-R2, SS7, ISDN, ISUP, M3UA, IUA, SIP, MGCP and H.248). Trainer in the following products: Softswitch, Media Gateways and Signaling Servers. Deployment of bandwidth optimization equipment for voice in mobile carriers. Performed the design of complex networks infrastructure for landline and mobile operators, based on requirements of low costs, security and products, including, but not limited to SBCs, routers, softswitches and media gateways. Responsible for Broadsoft Class5 deployment (Broadworks) in some Brazilian carriers like Algar Telecom. Deployed virtualized solutions for softswitches, SBCs and application servers using VMWare, KVM and Amazon Cloud. Responsible for a voice compression project in Tim using their 4G Network. Promoted to Regional Team Leader in Brazil. Main point of contact for all projects in Brazil. Helps other regional teams by providing consultancy to Sales and Services Teams in the elaboration of RFPs and Deployments. Show less

Experience with routing protocols (like BGP, RIP, EIGRP and OSPF) and redundancy protocols (HSRP). Implementing networks within QoS, access lists, VoIP/IPT, VoFR, IPSec. Providing expert support to Pre-sales and Proj. Managers on VPN design on case by case basis. Manage the End-to-End testing with the Customers and Order Management entities. Performing Level 2 support for LAN equipment. Properly Documenting the VPN design. Validating the detailed technical design of complex VPN. Specify with… Show more Experience with routing protocols (like BGP, RIP, EIGRP and OSPF) and redundancy protocols (HSRP). Implementing networks within QoS, access lists, VoIP/IPT, VoFR, IPSec. Providing expert support to Pre-sales and Proj. Managers on VPN design on case by case basis. Manage the End-to-End testing with the Customers and Order Management entities. Performing Level 2 support for LAN equipment. Properly Documenting the VPN design. Validating the detailed technical design of complex VPN. Specify with the customer the acceptance testing procedures. Performing configuration, activation and acceptance testing for both implementation and on-going change management of Cisco (routers and switches), Huawei and Nortel (Contivity) devices. Full responsibility for configuration of specific managed Customer’s networks. New network implementation. Advanced router configuration (Access list and QoS). Troubleshooting network problems and errors. Show less

Monitoring of VAS Services in GSM Network at national level, international roaming tests. Operation and manteinance of Siemens BSC and Ericsson MSC. Implementing and testing CVPN connections. Testing interconnection with international carriers and roaming partners. MAP tracers analysis during implementation phase and tests of operational connections.

Full responsibility for management of international network. Activation, configuration, implementation, monitoring and elaboration of all Telemar’s international interconnections. Planning and tests of physical layer (transmission), enlace and management of links SS7, as well as of the user layer (TUP, ISUP) of new interconnections. Sending, treatment and act of receiving of Trouble Tickets, originated and destined to any part of the world. Suport to GSM international roaming, as a hubbing… Show more Full responsibility for management of international network. Activation, configuration, implementation, monitoring and elaboration of all Telemar’s international interconnections. Planning and tests of physical layer (transmission), enlace and management of links SS7, as well as of the user layer (TUP, ISUP) of new interconnections. Sending, treatment and act of receiving of Trouble Tickets, originated and destined to any part of the world. Suport to GSM international roaming, as a hubbing carrier. Development and research of new features, configurations and resources of the equipment. Analysis, detection and correction of faults in Software and Hardware. Development of a system, made in Visual Basic, which permits daily routing changes, implemented by LCR Table (Least Cost Routing). Show less

Installation, tests and implantation of corrections and updatings of EWSD software (versions 10, 12, 13, 14 and 15), equipments of convergent networks (HiA and HiS, elements of the Siemens NGN platform, Surpass) and equipments of the architecture GSM (BTSs, BSCs). Emergency recovery of the telephone switches with total stoppage without automatic return. Performance in great projects of Telemar’s database alterations, as the creation of new Area Codes, insert of the “Eighth Digit” and several… Show more Installation, tests and implantation of corrections and updatings of EWSD software (versions 10, 12, 13, 14 and 15), equipments of convergent networks (HiA and HiS, elements of the Siemens NGN platform, Surpass) and equipments of the architecture GSM (BTSs, BSCs). Emergency recovery of the telephone switches with total stoppage without automatic return. Performance in great projects of Telemar’s database alterations, as the creation of new Area Codes, insert of the “Eighth Digit” and several alterations of its topology. Configuration and tests of the CCS7 signalling equipments. Development of tools in PASCAL for improving some stages of the configuration processes and equipments tests. Show less

Specialization, Economics Engineering

Mba, Marketing

Specialization, Criptography And Network Security

Bachelor, Electrical Engineering With Emphasis In Systems And Computers

Associate, Computer Web Development

Technician, Eletronics

Education record

Education record